Rational entries of the form a/b and complex entries of the form a+bi are supported. Examples: -5/12, -2i + 4.5. Warning: JavaScript can only store integers up to 2^53 - 1 = 9007199254740991. Because this implementation uses a pair of integers to represent rational numbers, incorrect results can be produced when intermediate values are supposed to have numerators or denominator exceeding this maximum.